Enabled 3D acceleration That helped a little, but it still wasnt quite enough. 
Maxed out guest’s video memory to 128 MB. Allocated 4 GB of RAM to the Ubuntu guest. Allocated 2 logical cores to the Ubuntu guest. In my configuration, I made the following change. Luckily I’ve got quite a bit installed on this new laptop, so the host has plenty to be generous with. The first thing that occured to me was to give the guest enough RAM, processors, and video RAM with 3D acceleration to quench its appetite. Optimus is a video card power saving technology that I’ll describe below The intersection of these two new things caused my Ubuntu guest to lurch pretty badly after the initial install. Pretty heavy 3D desktop environment that tends to lurch unless you have the right hardware and right Virtualbox settings I have all the power of Linux and all the device support of Windows, woohoo! And I can easily do Windows dev at the same time, double woohoo! Anywho, a few things have changed since the last time I got this setup working: Mostly cause I’m not trying to force Linux to run on a bunch of hardware it’s probably missing support for. The number of glitches I have to work through tend to be really few compared to a direct Linux install. Traditionally when I need to do Linux dev in this kind of environment, I’ve loaded up Ubuntu in VirtualBox. Since I’m pretty much changing everything about my career, I thought I’d stick to one thing staying the same – I’ll stay with a Windows PC (specifically Win 7 圆4 sp1). 
It looks like windows XP is using the VitrualBox Graphics Driver (Device manager > Display adapters : VirtualBox Graphics driver) It just doesn't show in full screen mode.So I’ve got a new hooptie laptop (a pimped out Sager NP9170). IDE Secondary Master (CD/DVD): VBoxGuestAdditions.iso (32.01 MB) IDE Primary Master: windowsxp.vdi (Normal, 10.00 GB) I can only choose 800圆00 and 600x480 resolutions. However, if I go to Devices on the Menu, it still shows "Install guest additions" like they were not installed. When I choose Full screen in virtualbox the operating system (my guest, windows XP) is still in small screen. I have Ubuntu 10.04 OS and a virtualbox (not the OSE) with windows XP as a guest.
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